cfg-ml-pos.in

   1 # Configure fragment invoked in the post-target section for subdirs
   2 # wanting multilib support.
   3 # The intent is to keep as much of this in one place as possible (and out
   4 # of each subdirectory, eg: newlib, libio, etc.) until the right way to do
   5 # this (ha ha) is decided upon.
   6
   7 # Only do this if --enable-multilib.
   8
   9 if [ "${enable_multilib}" = yes ]; then
  10
  11 if [ -z "${with_multisubdir}" ]; then
  12   multisubdir=
  13 else
  14   multisubdir="/${with_multisubdir}"
  15   dotdot=`echo ${multisubdir} | sed -e 's:/[^/]*:../:g'`
  16   # TOP is used by newlib and should not be used elsewhere for this purpose.
  17   sed -e "s:^TOP[       ]*=[    ]*\([./]*\)[    ]*$:TOP = ${dotdot}\1:" \
  18       -e "s:^MULTITOP[  ]*=[    ]*\([./]*\)[    ]*$:MULTITOP = ${dotdot}\1:" \
  19         ${Makefile} > Makefile.tem
  20   rm -f ${Makefile}
  21   mv Makefile.tem ${Makefile}
  22 fi
  23
  24 # MULTIDIRS is non-empty for the cpu top level Makefile (eg: newlib/Makefile)
  25 # and lists the subdirectories to recurse into.
  26 # MULTISUBDIR is non-empty in each cpu subdirectory's Makefile
  27 # (eg: newlib/h8300h/Makefile) and is the installed subdirectory name with
  28 # a trailing '/'.
  29 # MULTIDO is used for targets like all, install, and check where
  30 # $(FLAGS_TO_PASS) augmented with the subdir's compiler option is needed.
  31 # MULTICLEAN is used for the *clean targets.
  32 #
  33 # ??? It is possible to merge MULTIDO and MULTICLEAN into one.  They are
  34 # currently kept separate because we don't want the *clean targets to require
  35 # the existence of the compiler (which MULTIDO currently requires) and
  36 # therefore we'd have to record the directory options as well as names
  37 # (currently we just record the names and use --print-multi-lib to get the
  38 # options).
  39
  40 sed -e "s:^MULTIDIRS[   ]*=.*$:MULTIDIRS = ${multidirs}:" \
  41     -e "s:^MULTISUBDIR[         ]*=.*$:MULTISUBDIR = ${multisubdir}:" \
  42     -e 's:^MULTIDO[     ]*=.*$:MULTIDO = $(MAKE):' \
  43     -e 's:^MULTICLEAN[  ]*=.*$:MULTICLEAN = $(MAKE):' \
  44         ${Makefile} > Makefile.tem
  45 rm -f ${Makefile}
  46 mv Makefile.tem ${Makefile}
  47
  48 # ??? May wish to add a check to avoid appending this to Makefiles that
  49 # don't need it.  It's not necessary, but is cleaner.
  50
  51 cat > Multi.tem <<\EOF
  52
  53 # FIXME: There should be an @-sign in front of the `if'.
  54 # Leave out until this is tested a bit more.
  55 multi-do:
  56         if [ -z "$(MULTIDIRS)" ]; then \
  57           true; \
  58         else \
  59           rootpre=`pwd`/; export rootpre; \
  60           srcrootpre=`cd $(srcdir); pwd`/; export srcrootpre; \
  61           compiler="$(CC)"; \
  62           for i in `$${compiler} --print-multi-lib 2>/dev/null`; do \
  63             dir=`echo $$i | sed -e 's/;.*$$//'`; \
  64             if [ "$${dir}" = "." ]; then \
  65               true; \
  66             else \
  67               if [ -d $${dir} ]; then \
  68                 flags=`echo $$i | sed -e 's/^[^;]*;//' -e 's/@/ -/g'`; \
  69                 if (cd $${dir}; $(MAKE) $(FLAGS_TO_PASS) \
  70                                 CFLAGS="$(CFLAGS) $${flags}" \
  71                                 CXXFLAGS="$(CXXFLAGS) $${flags}" \
  72                                 LIBCFLAGS="$(LIBCFLAGS) $${flags}" \
  73                                 LIBCXXFLAGS="$(LIBCXXFLAGS) $${flags}" \
  74                                 $(DO)); then \
  75                   true; \
  76                 else \
  77                   exit 1; \
  78                 fi; \
  79               else true; \
  80               fi; \
  81             fi; \
  82           done; \
  83         fi
  84
  85 # FIXME: There should be an @-sign in front of the `if'.
  86 # Leave out until this is tested a bit more.
  87 multi-clean:
  88         if [ -z "$(MULTIDIRS)" ]; then \
  89           true; \
  90         else \
  91           for dir in Makefile $(MULTIDIRS); do \
  92             if [ -f ./$$dir/Makefile ]; then \
  93               if (cd ./$$dir; $(MAKE) $(FLAGS_TO_PASS) $(DO)); \
  94               then true; \
  95               else exit 1; \
  96               fi; \
  97             else true; \
  98             fi; \
  99           done; \
 100         fi
 101 EOF
 102
 103 cat ${Makefile} Multi.tem > Makefile.tem
 104 rm -f ${Makefile} Multi.tem
 105 mv Makefile.tem ${Makefile}
 106
 107 fi # "${enable_multilib}" = yes